The 1P76, 1P78, 1P78-1 optical sights are designed for battlefield surveillance, target selection, target ranging and aimed fire against luminous and illuminated targets during the day, at dusk and at night.

The sights have a wide field of view that allows for quick terrain observation in a fast-moving combat situation simultaneously with the naked eye and through the sight without loss of target visibility.

Reticle illumination by a radioluminescent source is a feature of the sights.

The sights can be used at temperatures ranging from minus 50 to plus 50 °C.